#include <bits/stdc++.h>
using namespace std;
typedef int64_t ll;
int main()
{
int r1,r2,c1,c2,d1,d2;
cin >> r1 >> r2 >> c1 >> c2 >> d1 >> d2;
for(int i=1;i<10;i++)
{
    for(int j=i+1;j<10;j++)
    {
        for(int k=i+2;k<10;k++)
        {
            for(int l=i+3;l<10;l++)
            {
                if(i+j==c1 and i+k==r1 and i+l==d1 and j+l==r2 and j+k==d2 and k+l==c2)
                {
                    cout << i << " " << k << endl;
                    cout << j << " " << l;
                    return 0;
                }
            }
        }
    }
}
cout << -1;

return 0;
}